RF device and switching control performed therein
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United States of America Patent
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-
May 30, 2017
Grant Date -
Apr 21, 2016
app pub date -
Oct 15, 2015
filing date -
Oct 21, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In an RF device, an RF circuit includes at least two RF transmitting/receiving elements; and an RF switch controlled to selectively electrically couple to one of the RF transmitting/receiving elements for transmitting/receiving an RF signal in response to a control signal. In addition, a testing circuit includes a first filter unit having a first external terminal electrically coupled to a testing signal and a second external terminal electrically coupled to the RF circuit, wherein the first filter unit is configured to allow the testing signal to enter the RF circuit while blocking an RF signal transmitted in the RF circuit from entering the testing circuit; and a testing-result informing unit having an external input electrically coupled to the first external terminal, and determining contents of the control signal according to an electric level at the external input.
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